static void Main(string[] args)
{
Notebook notebook = new Notebook();
Desktop desktop = new Desktop();
Netbook netbook = new Netbook();
DeviceManager manager = new DeviceManager();
manager.TurnOff(notebook);
manager.TurnOff(desktop);
manager.TurnOff(netbook);
}
static void Main(string[] args)
{
Notebook notebook = new Notebook();
Netbook netbook = new Netbook();
DeviceManager manager = new DeviceManager();
manager.TurnOff(notebook); // 부모클래스 매개변수에 자식클래스를 인자로?
manager.TurnOff(netbook); // 이거 참조형식 아니냐?
Computer[] machines = new Computer[] { new Notebook(), new Netbook() };
foreach (Computer device in machines)
{
manager.TurnOff(device);
}
}
static void Main(string[] args)
{
Console.WriteLine("================= 노트북 ===============");
Notebook aNoteBook = new Notebook();
aNoteBook.Boot();
aNoteBook.Reset();
aNoteBook.Shutdown();
Console.WriteLine("================= 데스크탑 =============");
Desktop aDesktop = new Desktop();
aDesktop.Boot();
aDesktop.Reset();
aDesktop.Shutdown();
Console.WriteLine("================= 넷북 =================");
Netbook aNetbook = new Netbook();
aNetbook.Boot();
aNetbook.Reset();
aNetbook.Shutdown();
Console.WriteLine();
}
static void Main(string[] args)
{
Notebook notebook = new Notebook();
Desktop desktop = new Desktop();
Netbook netbook = new Netbook();
DeviceManger manger = new DeviceManger();
manger.TurnOff(notebook);
manger.TurnOff(desktop);
manger.TurnOff(netbook);
Computer[] machines = new Computer[] { new Notebook(), new Desktop(), new Netbook() }; // 자식 클래스의 인스턴스를 부모 객체의 배열에 담을 수 있는 이유 → 암시적 형변환
DeviceManger deviceManger = new DeviceManger();
foreach (Computer device in machines)
{
deviceManger.TurnOff(device);
}
}
